Question about Weather King 10AJA3601AH Air Conditioner

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Unit works with short cycling

When t/stat turns on with setting of 78deg inducer motor & blower kicks on then igintor kicks on then burner kicks on after little while burner turn-off then blower speed gets low , inducer motor still runs,green light blink with 3 times & hold again blink 3times,then inducer motor turns off, again doing the same cycle,temperature not rise more than 67deg,I am refrigeration tech,pls. give me some clue or hints to work on with,thanks

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Sounds like its tripping a limit switch or if it has a flame rod .you may need to clean it. Possibly tripping the high limit due to dirty filter. usually has a diagnostic sheet on one of the panels that will tell you what is going on check the panel you see the light closest to.

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Posted on Jan 16, 2009

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1 Answer

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Induced fan motors on older units are wired through the high limit safety on the stack - in series. When the furnace calls for heat, the induced fan motor comes on and after a time the furnace will light.

Older units have a temp switch in the stack that rotates to bring on the burners and blower motor. . When there is a call for heat, the induced draft fan motor comes on and then the burners will light.

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1 Answer

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